Boiler-cleaning device



F. BOWERS BOILER CLEANING DEVICE 2 sheets-sham 1 iii 2 I J1 wm I. J HQ 0 B p l D om. A A Z? J .8 Q 1 1 U w .fTn AH 7AvW/A:

WM W MAM May 24, 1927. 1,629,675

- F. BOWERS BOILER CLEANING DEVICE Original iked Nova 21, 1918 2 Sheets-Sheet 2 .5 D

i wuzwtoz 3" WW aw W/Ww duo cam Patented May 24,1927.

remit FRANK BOWERS, or n DIAMOND POWER SPECIALTY ETROIT, MICHIGAN, ASSIG'NOR, BY MESNE ASSIGNMENTS, 'IO

CORPORATION,

011 DETROIT, MICHIGAN, A CORPORA- rron or MICHIGAN. I a 1 roman-C EANING nnvrcn.

I Application filed November 21, 1318,

This invention relates to boiler cleaners and refers more par ticularly to boiler cleaners of the type in which steam or other cleaning fluid is discharged against the surfaces to be cleaned by means of a rotatable pipe or blower unithaving nozzles or other suitable discharge openings. 7

Among the objects of provide an improved rotatable blower unit steam; to provide an of drive mechanism to provide a headfor the unit which can be conveniently manufao improved for rotating the un1t the invention are to connection between the and the source of arrangement end of the blower tured and assembled; and to provide a construction in which both the steam connection and the driving mechanism are completely inclosed within a able cap for compact construction. The invention also resides in the removthe blower unit head and in such further features of construction and arrangements I and combinations of parts as will more In the drawings:

fully hereinafter appear.

Figure 1 is a view in sectional elevation of a boiler to which the invention is applied; Figure 2 is a fragmentary vertical sectional view showing one arrangement of my invention Figure 3 is a cross-section on line 3-3 of Figure 2; v Descrlblng 1n detall struction shown 1n the the particular condrawings, A designates a boiler having a plurality of boiler tubes B, and C designates a discharge nozzles C or other suitable fluid ing a plurality of through which steam is discharged against tubes B so as to remove blower unit havthe surfaces of the the soot or other accumulations from the boiler tubes.

In boiler cleaners of common to mount so that it can be rotat arc whereby the against all of the the blower unit ed through a given steam jets can be discharged surfaces of the tubes to be the type shown it is or pipe 0 cleaned or whatever portion is desired to be cleaned by this unit.

The present invention particularly contemplates an improved the pipe between means for rotating 0 and also an improved connection the pipe G and the steam conduit D leading from the main steam supply pipe D. For this purpose I head E which has a cy employ a' casting or lindrical portion E the blower unit or pipe C vided at itsv outer end 'wheel G and after 'the chamber L Serial No. 263,476. Renewed September 16, 1925.

telescopically engaging an end of the blower pipe C, In order toreduce the friction between the walls of the cylindrical portion E and the blower unit, the former is'cut away at E The extreme outer end F of is preferably threaded at F to receive a worm wheel G which is keyed or otherwise fixed to, the pipe to drive the same. Thecasting E is also provided with a supplemental housing or chamber H in which there is mounted a worm H meshing with the worm wheel G. The supplemental housing H has suitable bearings I and I in which the shaft J of the worm H is mounted, the bearing '1. being preferably removable and containing a steam packing I through which the end of the shaft J extends. For turningthe shaft J so as to rotate theworm and wornr wheel, whereby the unitC can be operated from a convenient point, the shaft J is prowith a chain wheel J over which there extends a depending chain J v By employing the/removable bushing I v the worm I-l can be conveniently inserted and removed from the supplemental houslng H, and I provide a similar arrange- ,ment for the main part of the housing E whereby the worm wheel G can be conveniently inserted and removed. As shown in Figure 2, the outer end of the housing E has an enlarged threaded opening K into which there is threaded a cap or closure K. The size of the opening is preferably such as to permit the free insertion of the worm the parts are assembled v the cap K" is threaded into'the opening K. This cap not only forms a closure for the opening K, but also is provided with a chamber L registering with the open end of the pipe C, and branch passages M leading from to the inlet opening M into which the branch conduit D is threaded. In thismanner there is always provided a steam passageway from the branch supply pipe D to the unit C whenever the control valve D is opened. After open'ng the valve D the blower unit or pipe 0 is rotated by turning the shaft J through the chain J 2 and'wheel J. This rotary movement of the shaft J is imparted to the blower unit or pipe by the worm and worm wheel, a slow and steady movement being transmitted to the pipe C v against which the steamsupply and which will than it will the tubes B.

To limit the arc through which the unit- C can be turned the supplemental housing H is provided with an inwardly extending projection N which forms a stationary stop stops 0 on the worm wheel G will strike. The stops 0 are preferably formed as bolts extendingthrough slots Q in the web of said worin wheel and in this manner theyoan beshiited so as to vary the degree of rotation throughwhich the unit can beturned.

lVjhat I claim as my invention is:

1 In, a device for vcleaning boilers, the combination with a rotatable blower unit and a steam supply pipe of atting establishing a direct connection therebetween comprising a header into which both the the blower unitopen, said header having a removable cap, and said cap having passageways connecting the blower-pipe withthe supply pipe.

2. In a device for cleaning boilers, the combination with a rotatable blower unit and a steam supply pipe, of a connection therebetween comprising aheader into which both the steam supply and the blower unit open, said header having an opening there'- i'n, acap normally closing said opening, and a gear mounted within said header for rotating said unit; the mounting for said gear and said opening being so relatively disposed as to permit the gear to berea-dily inserted into place through said opening in the assembling of i appl d- 7 In a device for cleaning boilers, the combination with a rotatable blower unit and asteam supply-pipe-, oi a connection 'therebetween' comprising a header into wh ch vboth the steam supply and the blower unit 4. In a device-for 'cleaning' boilers, the

combination with a rotatable blower unit and a steam supply pipeyof a connection therebetween comprising a head'erii'nto which both the steam supply-and the blower zunit directlyopein said header having a removable cap. opposite the blower unit said unit being extended through the header into proximity to said cap, and the cap being formed with a passageway for delivering steam froni'the suppiypipe tothe unit. 7

in testimony whereof I affix my signature.

FRANK 51B ownns,

the unit, before the cap 

